Julia v1.3 Release Notes
========================

New language features
---------------------

* Support for Unicode 12.1.0 ([#32002]).

Language changes
----------------


Multi-threading changes
-----------------------


Build system changes
--------------------


New library functions
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* New `findall(pattern, string)` method where `pattern` is a string or regex ([#31834]).

Standard library changes
------------------------

* `Regex` can now be multiplied (`*`) and exponentiated (`^`), like strings ([#23422]).
* Cmd interpolation (`` `$(x::Cmd) a b c` `` where) now propagates `x`'s process flags
  (environment, flags, working directory, etc) if `x` is the first interpolant and errors
  otherwise ([#24353]).

#### LinearAlgebra

* The BLAS submodule no longer exports `dot`, which conflicts with that in LinearAlgebra ([#31838]).
* `diagm` and `spdiagm` now accept optional `m,n` initial arguments to specify a size ([#31654]).

#### SparseArrays


#### Dates


#### Statistics

* `mean` now accepts both a function argument and a `dims` keyword ([#31576]).

#### Miscellaneous

* `foldr` and `mapfoldr` now work on any iterator that supports `Iterators.reverse`, not just arrays ([#31781]).

External dependencies
---------------------


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